Sink



FIG. 1 is a perspective view of a sink;

FIG. 2 is a perspective view of a sink;

FIG. 3 is a side view of a sink, its opposite side similar in appearance;

FIG. 4 is a top view of a sink;

FIG. 5 is a front view of a sink;

FIG. 6 is a back view of a sink; and,

FIG. 7 is a bottom view of a sink. 

The ornamental design for a sink, as shown in the drawings. 